You can also hire a professional energy auditor to evaluate your house for you. To assist the auditor in their work, have copies or a summary of the home's yearly energy bills as auditors use this information to establish what to look for during the audit.  Also, be prepared to answer some of the following questions to help the auditor in their work:

1. Is anyone home during working hours?

2. What is the average thermostat setting for summer and winter?

3. How many people live here?

4. Is every room in use?

Your answers to these questions will help the auditor identify some simple ways for you to reduce your energy consumption.

Energy efficiency experts use a variety of techniques and equipment to diagnose your home. In fact, most professional auditors rely on these key techniques: 

Infared Cameras

Infared cameras are used to perform a thermal inspection and visualize where heat is escaping your home such as air leaks and missing insulation. 

Blower Doors

Blower doors are used to de-pressurize your home and then measure air leaks in doors frames, windows, walls and your roof. 

Furnace Efficiency Meters and Surface Thermometers

These meters and thermometers are used in order to determine if your home heating & cooling systems are working properly and are effectively insulated.

Experience

Professional auditors have been trained and have experience of seeing numerous homes with energy problem and will be able to identify both small and large opportunities for improvement.